This option is called disk cleanup, and all Windows computers come with a version of it that you can use to reclaim hard disk space gratis. While a new computer or external drive may give you more file storage space, there’s a faster way to gain usable storage space without straining your budget. When your computer is bogged down with outdated files, you aren’t able to work at an efficient pace. If you’re like most people, you want a computer that’s nimble enough to keep up with your life. These hiccups occur when your computer’s software, firmware, or drivers crash due to faulty or incompatible hardware or software. The blue screen (Stop Error) is shown with the message that your PC ran into an error and needs to restart. You’re in the middle of a computing task, and your screen blinks. What is Disk Cleanup and does it remove viruses?